function toggleCalendar(objname){
   var DivDisplay = document.getElementById(objname).style;
   if (DivDisplay.display  == 'none') {
     DivDisplay.display = 'block';
   }else{
     DivDisplay.display = 'none';
   }
}

function setValue(objname, d){
   document.getElementById(objname).value = d;

   var dp = document.getElementById(objname+"_dp").value;
   if(dp == true){
      var date_array = d.split("-");
      
      var inp = document.getElementById(objname+"_inp").value;
      if(inp == true){              
         document.getElementById(objname+"_day").value = date_array[2];
         document.getElementById(objname+"_month").value = date_array[1];
         document.getElementById(objname+"_year").value = date_array[0];
      }else{
         //update date pane
         
         var myDate = new Date();
         myDate.setFullYear(date_array[0],(date_array[1]-1),date_array[2]);
         var dateFormat = document.getElementById(objname+"_fmt").value
         
         document.getElementById("divCalendar_"+objname+"_lbl").innerHTML = myDate.format(dateFormat);
      }
      
      toggleCalendar('div_'+objname);
   }
}

function tc_setDay(objname, dvalue, path){
   var obj = document.getElementById(objname);
   var date_array = obj.value.split("-");
   
   //check if date is not allow to select
   if(!isDateAllow(objname, dvalue, date_array[1], date_array[0])){
      alert("This date is not allow to select");
      
      restoreDate(objname);
   }else{
      if(isDate(dvalue, date_array[1], date_array[0])){
         obj.value = date_array[0] + "-" + date_array[1] + "-" + dvalue;
         
         var obj = document.getElementById(objname+'_frame');
         
         var year_start = document.getElementById(objname+'_year_start').value;
         var year_end = document.getElementById(objname+'_year_end').value;
         var dp = document.getElementById(objname+'_dp').value;
         var smon = document.getElementById(objname+'_mon').value;
         var da1 = document.getElementById(objname+'_da1').value;
         var da2 = document.getElementById(objname+'_da2').value;
         var sna = document.getElementById(objname+'_sna').value;
         var aut = document.getElementById(objname+'_aut').value;
         var frm = document.getElementById(objname+'_frm').value;
         var tar = document.getElementById(objname+'_tar').value;
         
         obj.src = path+"calendar_form.php?objname="+objname.toString()+"&selected_day="+dvalue+"&selected_month="+date_array[1]+"&selected_year="+date_array[0]+"&year_start="+year_start+"&year_end="+year_end+"&dp="+dp+"&mon="+smon+"&da1="+da1+"&da2="+da2+"&sna="+sna+"&aut="+aut+"&frm="+frm+"&tar="+tar;
         
         obj.contentWindow.submitNow(dvalue, date_array[1], date_array[0]);
         
      }else document.getElementById(objname+"_day").selectedIndex = date_array[2];
   }
}

function tc_setMonth(objname, mvalue, path){
   var obj = document.getElementById(objname);
   var date_array = obj.value.split("-");
   
   //check if date is not allow to select
   if(!isDateAllow(objname, date_array[2], mvalue, date_array[0])){
      alert("This date is not allow to select");
      
      restoreDate(objname);
   }else{
      if(isDate(date_array[2], mvalue, date_array[0])){
         obj.value = date_array[0] + "-" + mvalue + "-" + date_array[2];
      
         var obj = document.getElementById(objname+'_frame');
         
         var year_start = document.getElementById(objname+'_year_start').value;
         var year_end = document.getElementById(objname+'_year_end').value;
         var dp = document.getElementById(objname+'_dp').value;
         var smon = document.getElementById(objname+'_mon').value;
         var da1 = document.getElementById(objname+'_da1').value;
         var da2 = document.getElementById(objname+'_da2').value;
         var sna = document.getElementById(objname+'_sna').value;
         var aut = document.getElementById(objname+'_aut').value;
         var frm = document.getElementById(objname+'_frm').value;
         var tar = document.getElementById(objname+'_tar').value;
         
         obj.src = path+"calendar_form.php?objname="+objname.toString()+"&selected_day="+date_array[2]+"&selected_month="+mvalue+"&selected_year="+date_array[0]+"&year_start="+year_start+"&year_end="+year_end+"&dp="+dp+"&mon="+smon+"&da1="+da1+"&da2="+da2+"&sna="+sna+"&aut="+aut+"&frm="+frm+"&tar="+tar;
         
         obj.contentWindow.submitNow(date_array[2], mvalue, date_array[0]);
         
      }else document.getElementById(objname+"_month").selectedIndex = date_array[1];
   }
}

function tc_setYear(objname, yvalue, path){
   var obj = document.getElementById(objname);
   var date_array = obj.value.split("-");
   
   //check if date is not allow to select
   if(!isDateAllow(objname, date_array[2], date_array[1], yvalue)){
      alert("This date is not allow to select");
      
      restoreDate(objname);
   }else{   
      if(isDate(date_array[2], date_array[1], yvalue)){
         obj.value = yvalue + "-" + date_array[1] + "-" + date_array[2];
      
         var obj = document.getElementById(objname+'_frame');
         
         var year_start = document.getElementById(objname+'_year_start').value;
         var year_end = document.getElementById(objname+'_year_end').value;
         var dp = document.getElementById(objname+'_dp').value;
         var smon = document.getElementById(objname+'_mon').value;
         var da1 = document.getElementById(objname+'_da1').value;
         var da2 = document.getElementById(objname+'_da2').value;
         var sna = document.getElementById(objname+'_sna').value;
         var aut = document.getElementById(objname+'_aut').value;
         var frm = document.getElementById(objname+'_frm').value;
         var tar = document.getElementById(objname+'_tar').value;
         
         obj.src = path+"calendar_form.php?objname="+objname.toString()+"&selected_day="+date_array[2]+"&selected_month="+date_array[1]+"&selected_year="+yvalue+"&year_start="+year_start+"&year_end="+year_end+"&dp="+dp+"&mon="+smon+"&da1="+da1+"&da2="+da2+"&sna="+sna+"&aut="+aut+"&frm="+frm+"&tar="+tar;
         
         obj.contentWindow.submitNow(date_array[2], date_array[1], yvalue);
         
      }else document.getElementById(objname+"_year").value = date_array[0];
   }
}

function yearEnter(e){
   var characterCode;
   
   if(e && e.which){ //if which property of event object is supported (NN4)
      e = e;
      characterCode = e.which; //character code is contained in NN4's which property
   }else{
      e = event;
      characterCode = e.keyCode; //character code is contained in IE's keyCode property
   }
   
   if(characterCode == 13){ 
      //if Enter is pressed, do nothing      
      return true;
   }else return false;
}


// Declaring valid date character, minimum year and maximum year
var minYear=1900;
var maxYear=2100;

function isInteger(s){
   var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function is_leapYear(year){
   return (year % 4 == 0) ?
      !(year % 100 == 0 && year % 400 != 0)  : false;
}

function daysInMonth(month, year){
   var days = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
   return (month == 2 && is_leapYear(year)) ? 29 : days[month-1];
}
   
function DaysArray(n) {
   for (var i = 1; i <= n; i++) {
      this[i] = 31
      if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
      if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(strDay, strMonth, strYear){
/*
   //bypass check date  
   strYr=strYear
   if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
   if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
   for (var i = 1; i <= 3; i++) {
      if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
   }
   month=parseInt(strMonth)
   day=parseInt(strDay)
   year=parseInt(strYr)
   if (strMonth.length<1 || month<1 || month>12){
      alert("Please enter a valid month")
      return false
   }
   if (strDay.length<1 || day<1 || day>31 || day > daysInMonth(month, year)){
      alert("Please enter a valid day")
      return false
   }
   if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
      alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
      return false
   }*/
   return true
}

function isDateAllow(objname, strDay, strMonth, strYear){   
   var da1 = document.getElementById(objname+"_da1").value;
   var da2 = document.getElementById(objname+"_da2").value;
   
   if(parseInt(strDay)>0 && parseInt(strMonth)>0 && parseInt(strYear)>0){  
      if(da1 || da2){
         var date2Set = new Date();
         date2Set.setFullYear(parseInt(strYear), parseInt(strMonth), parseInt(strDay));
         
         if(da1 && da2){
            var da1Arr = da1.split('-', 3);        
            var da2Arr = da2.split('-', 3);
            
            var da1Date=new Date();
            da1Date.setFullYear(parseInt(da1Arr[0]),parseInt(da1Arr[1]),parseInt(da1Arr[2]));
                     
            var da2Date=new Date();
            da2Date.setFullYear(parseInt(da2Arr[0]),parseInt(da2Arr[1]),parseInt(da2Arr[2]));
            
            return (date2Set>=da1Date && date2Set<=da2Date) ? true : false;
         }else if(da1){
            var da1Arr = da1.split('-', 3);        
            
            var da1Date=new Date();
            da1Date.setFullYear(da1Arr[0],da1Arr[1],da1Arr[2]);
                     
            return (date2Set>=da1Date) ? true : false;
         }else{
            var da2Arr = da2.split('-', 3);        
            
            var da2Date=new Date();
            da2Date.setFullYear(da2Arr[0],da2Arr[1],da2Arr[2]);
            
            alert(date2Set);
            alert(da2Date);
            
            return (date2Set<=da2Date) ? true : false;
         }
      }else return true;
   }else return true; //always return true if date not completely set
}

function restoreDate(objname){
   //get the store value
   var storeValue = document.getElementById(objname).value;
   var storeArr = storeValue.split('-', 3);
   
   //set it
   document.getElementById(objname+'_day').value = storeArr[2];
   document.getElementById(objname+'_month').value = storeArr[1];
   document.getElementById(objname+'_year').value = storeArr[0];
}

//----------------------------------------------------------------
//javascript date format function thanks to
// http://jacwright.com/projects/javascript/date_format
//
// some modification to match the calendar script
//----------------------------------------------------------------

// Simulates PHP's date function
Date.prototype.format = function(format) {
   var returnStr = '';
   var replace = Date.replaceChars;
   for (var i = 0; i < format.length; i++) {
      var curChar = format.charAt(i);
      if (replace[curChar]) {
         returnStr += replace[curChar].call(this);
      } else {
         returnStr += curChar;
      }
   }
   return returnStr;
};
Date.replaceChars = {
   shortMonths: ['Ene', 'Feb', 'Mar', 'Abr', 'May', 'Jun', 'Jul', 'Ago', 'Sep', 'Oct', 'Nov', 'Dic'],
   longMonths: ['Enero', 'Febrero', 'Marzo', 'Abril', 'Mayo', 'Junio', 'Julio', 'Agosto', 'Septiembre', 'Octubre', 'Noviembre', 'Diciembre'],
   shortDays: ['Dom', 'Lun', 'Mar', 'Mie', 'Jue', 'Vie', 'Sab'],
   longDays: ['Domingo', 'Lunes', 'Martes', 'Miercoles', 'Jueves', 'Viernes', 'Sabado', 'Domingo'],
   
   // Day
   d: function() { return (this.getDate() < 10 ? '0' : '') + this.getDate(); },
   D: function() { return Date.replaceChars.shortDays[this.getDay()]; },
   j: function() { return this.getDate(); },
   l: function() { return Date.replaceChars.longDays[this.getDay()]; },
   N: function() { return this.getDay() + 1; },
   S: function() { return (this.getDate() % 10 == 1 && this.getDate() != 11 ? 'st' : (this.getDate() % 10 == 2 && this.getDate() != 12 ? 'nd' : (this.getDate() % 10 == 3 && this.getDate() != 13 ? 'rd' : 'th'))); },
   w: function() { return this.getDay(); },
   z: function() { return "Not Yet Supported"; },
   // Week
   W: function() { return "Not Yet Supported"; },
   // Month
   F: function() { return Date.replaceChars.longMonths[this.getMonth()]; },
   m: function() { return (this.getMonth() < 9 ? '0' : '') + (this.getMonth() + 1); },
   M: function() { return Date.replaceChars.shortMonths[this.getMonth()]; },
   n: function() { return this.getMonth() + 1; },
   t: function() { return "Not Yet Supported"; },
   // Year
   L: function() { return "Not Yet Supported"; },
   o: function() { return "Not Supported"; },
   Y: function() { return this.getFullYear(); },
   y: function() { return ('' + this.getFullYear()).substr(2); },
   // Time
   a: function() { return this.getHours() < 12 ? 'am' : 'pm'; },
   A: function() { return this.getHours() < 12 ? 'AM' : 'PM'; },
   B: function() { return "Not Yet Supported"; },
   g: function() { return this.getHours() % 12 || 12; },
   G: function() { return this.getHours(); },
   h: function() { return ((this.getHours() % 12 || 12) < 10 ? '0' : '') + (this.getHours() % 12 || 12); },
   H: function() { return (this.getHours() < 10 ? '0' : '') + this.getHours(); },
   i: function() { return (this.getMinutes() < 10 ? '0' : '') + this.getMinutes(); },
   s: function() { return (this.getSeconds() < 10 ? '0' : '') + this.getSeconds(); },
   // Timezone
   e: function() { return "Not Yet Supported"; },
   I: function() { return "Not Supported"; },
   O: function() { return (-this.getTimezoneOffset() < 0 ? '-' : '+') + (Math.abs(this.getTimezoneOffset() / 60) < 10 ? '0' : '') + (Math.abs(this.getTimezoneOffset() / 60)) + '00'; },
   T: function() { var m = this.getMonth(); this.setMonth(0); var result = this.toTimeString().replace(/^.+ \(?([^\)]+)\)?$/, '$1'); this.setMonth(m); return result;},
   Z: function() { return -this.getTimezoneOffset() * 60; },
   // Full Date/Time
   c: function() { return "Not Yet Supported"; },
   r: function() { return this.toString(); },
   U: function() { return this.getTime() / 1000; }
};